Investigation into banks including Goldman Sachs, Deutsche Bank ends due to insufficient evidence

BRUSSELS—European antitrust authorities have dropped a high-profile investigation into 13 of the world’s largest investment banks over alleged collusion in the lucrative credit-derivatives market.

The European Commission, the bloc’s top antitrust regulator, had charged the banks two years ago with colluding to prevent the multitrillion-dollar market for credit-default swaps from moving onto regulated exchanges and away from markets controlled by the banks.